Step into a world of unmatched excellence with the 250kW Energy-Efficient Water Cooling Two-Stage Screw Air Compressor from Sanzhi. This remarkable machine is a shining example of superior German engineering. As a forerunner in China's compressor industry, Sanzhi (Henan) Compressor Co., Ltd. is proud to present this revolutionary innovation. Transform your operations with our advanced Permanent Magnet Variable Frequency Two-Stage Screw Air Compressor, renowned for pioneering new factory pricing standards. This engineering wonder, featuring cutting-edge Centrifugal Fans, offers outstanding energy efficiency and significant cost savings, redefining the economics of operation. Designed with precision for stationary use, this formidable compressor meets the toughest demands of industrial applications, setting new standards in both performance and reliability. Elevate your operational capabilities to extraordinary heights with an unparalleled standard of excellence.
In-Depth Analysis: Embark on a captivating exploration into the very essence of this advanced system, with a focus on the Frontside. Discover the harmonious integration of each component, meticulously orchestrated to deliver extraordinary performance and steadfast reliability.
Revolutionary Working Principle: Welcome a new era in air compression where state-of-the-art innovation meets unmatched efficiency. This pioneering approach sets new industry standards, offering exceptional performance while prioritizing sustainability.
Leading the charge in air compression technology, our system exemplifies optimal efficiency through the expert fusion of single-stage and multi-stage configurations. While theoretically, these systems share similar energy demands, practical considerations such as transmission power losses, bearing friction, and cooling dynamics often escalate energy requirements. By strategically reducing the compression ratio at each stage, our multi-stage systems achieve superior efficiency, significantly reducing energy consumption compared to their single-stage counterparts. This advanced methodology not only boosts system performance but also dramatically cuts down on energy waste, establishing a revolutionary standard in power efficiency.
Introducing the revolutionary 250kW Energy-Efficient Water Cooling Two-Stage Screw Air Compressor by Sanzhi (Henan) Compressor Co., Ltd. This marvel of technology features an advanced dual rotary screw mechanism, with each stage encompassing an active screw that drives a passive one through an expertly engineered external power transfer system. The first stage includes a low-pressure screw assembly crafted for exceptional performance, whereas the second stage houses a high-pressure screw assembly. Central to this intricate process are sealing air films encasing each screw, steering compression through three vital phases: smooth air intake, dynamic pressurization elevating efficiency to unprecedented levels, and the final exhaust phase, achieving unmatched precision and excellence.
First Stage Compression: The initial phase of the two-stage screw air compressor showcases engineering excellence. A sophisticated low-pressure screw assembly begins the process, channeling gas into the compression chamber through a precisely calibrated suction valve. As the rotor accelerates at high speeds, the gas undergoes initial compression, laying the foundation for further amplification in the subsequent phase, thereby gearing up the system for remarkable performance.
Second Stage Compression: As gas proceeds to the second stage, it encounters a meticulously designed, more compact screw space where both pressure and temperature are skillfully heightened to new peaks. This process reaches its climax when the exhaust valve opens, permitting high-pressure gases to seamlessly exit the system. This completes an intricate compression cycle, distinguished by unmatched efficiency and sophistication.
The elegant air compression journey begins as ambient air smoothly flows through the air filter, merging with a hint of lubricating oil within the compression chamber. This mixture experiences initial compression to intermediate pressure, subsequently undergoing substantial cooling through interaction with oil mist in the cooling channel. The cooled gas then transitions to the second-stage rotor, facing a secondary compression phase to achieve the desired final exhaust pressure. This expertly orchestrated cycle concludes as the compressed gas is gracefully expelled through the exhaust valve, marking the end of an exceptionally comprehensive and efficient air compression process.
| Sanzhi (Henan) Compressor Co,. Ltd. |
| Two-Stage Compression Permanent Magnet Variable Frequency Screw Air Compressor |
| Model |
Power |
Exhaust pressure |
Free air delivery* of unit at working pressure |
Voltage |
Frequency |
Air outlet discharge size |
Weight |
Dimensions |
| KW |
Mpa |
m³/min |
V |
Hz |
Inch |
Kg |
L*W*H(mm) |
| SZ15VF-II |
15 |
0.5 |
4.00 |
380 |
50 |
G1½ |
660 |
1450*780*1180 |
| 0.8 |
3.00 |
| 1.3 |
2.00 |
| SZ19VF-II |
18.5 |
0.5 |
5.00 |
380 |
50 |
G1½ |
680 |
1450*780*1180 |
| 0.8 |
4.00 |
| 1.3 |
3.80 |
| 1.6 |
2.20 |
| SZ22VF-II |
22 |
0.5 |
6.60 |
380 |
50 |
G1½ |
730 |
1650*880*1280 |
| 0.8 |
4.20 |
| 1.3 |
3.00 |
| 1.6 |
2.50 |
| SZ30VF-II |
30 |
0.5 |
7.00 |
380 |
50 |
G1½ |
980 |
2000*1260*1560 |
| 0.8 |
6.40 |
| 1.3 |
4.00 |
| 1.6 |
3.00 |
| SZ37VF-II |
37 |
0.5 |
10.00 |
380 |
50 |
G1½ |
1080 |
2000*1260*1560 |
| 0.8 |
7.00 |
| 1.3 |
5.50 |
| 1.6 |
4.00 |
| SZ45VF-II |
45 |
0.5 |
13.00 |
380 |
50 |
G2 |
1980 |
2000*1260*1560 |
| 0.8 |
10.00 |
| 1.3 |
6.50 |
| 1.6 |
5.00 |
| SZ55VF-II |
55 |
0.5 |
17.00 |
380 |
50 |
G2 |
2180 |
2150*1300*1730 |
| 0.8 |
12.00 |
| 1.3 |
8.60 |
| 1.6 |
5.00 |
| SZ75VF-II |
75 |
0.5 |
20.00 |
380 |
50 |
G2 |
2280 |
2150*1300*1730 |
| 0.8 |
16.50 |
| 1.3 |
11.00 |
| 1.6 |
9.00 |
| SZ90VF-II |
90 |
0.5 |
24.00 |
380 |
50 |
DN65 |
3200 |
2700*1920*1820 |
| 0.8 |
20.00 |
| 1.3 |
14.00 |
| 1.6 |
11.00 |
| SZ110VF-II |
110 |
0.5 |
28.00 |
380 |
50 |
DN65 |
3360 |
2700*1920*1820 |
| 0.8 |
24.50 |
| 1.3 |
18.00 |
| 1.6 |
14.00 |
| Due to product updates, the above parameters are subject to deviation in kind. |
The water-cooled compressors from Sanzhi (Henan) Compressor Co., Ltd. are the epitome of precision engineering excellence. These cutting-edge machines utilize the impressive cooling capabilities of water to provide exceptional lubrication, ensuring the durability and longevity of components prone to friction. The continuous circulation of cooling water serves a dual purpose: it meticulously cleanses internal components while efficiently dissipating heat generated by the cylinder and compressed gas. This sophisticated mechanism significantly lowers exhaust temperatures and minimizes power consumption, resulting in remarkable operational cost savings. To ensure sustained peak performance, it is crucial to regularly monitor and address any potential scaling issues within the cooling system promptly.
1) High efficiency of PM motor:Our state-of-the-art permanent magnet (PM) motor is a marvel of engineering, delivering an extraordinary constant torque range and featuring a wide weak magnetic spectrum that boasts a staggering 20-30% higher efficiency than traditional motors. Even when operating beyond rated frequencies, the PM motor maintains its unrivaled efficiency, guaranteeing optimal performance under all operational conditions.
2) Motor maintenance-free:The revolutionary permanent magnet motor is ingeniously designed with a bearing-free configuration, eliminating the typical costs associated with motor bearing maintenance and replacement. This innovative design leads to a substantial reduction in overall maintenance expenses.
3) Integrated frequency converter: Equipped with China's top-notch frequency system, our compressor offers extensive speed regulation with remarkable precision. The system intelligently adjusts in real-time to align with gas demands, ensuring maximum energy savings and delivering peak operational efficiency.
4) No transmission loss: Featuring a direct shaft connection design, the compressor seamlessly integrates an embedded permanent magnet motor for a streamlined and compact structure. This innovative approach eliminates the need for couplings and other transmission components, achieving impeccable 100% transmission efficiency.
5) Variable frequency start and soft start:The advanced motor design effectively minimizes impact on power grid equipment, offering robust protection to electrical systems from potential damage and significantly prolonging the lifespan of the entire system.
6) Reduced energy consumption: With an exceptional frequency conversion range of 25% to 100% (compared to the conventional 50% to 100%), our system delivers over 30% energy savings relative to fixed-speed compressors and approximately 5% more savings than standard variable frequency compressors, presenting substantial benefits for systems with variable gas consumption needs.
7) Unique two-stage compression air end:The two-stage compression screw machine is an engineering masterpiece, designed to integrate first and second-stage compression rotors within a single casing, each rotor propelled by separate gears to ensure optimal linear speed and unparalleled compression efficiency.
8) Internal spray curtain cooling method: Our high-efficiency internal spray curtain cooling method offers outstanding cooling effects, dramatically lowering compressed air temperatures. This process results in nearly isothermal compression, minimizing pressure loss between stages, optimizing the compression ratio, and enhancing overall compression efficiency.
9) Reduced internal leakage:The two-stage compression system significantly reduces the compression ratio for each stage, minimizing internal leakage between high and low-pressure ends and thereby boosting volumetric efficiency.
10) Noise reduction:The reduced compression ratio in the two-stage system profoundly decreases noise levels, particularly during unloading operations, ensuring a quieter and more tranquil working environment.
11) Easy maintenance and service:Despite the advanced two-stage compression design, the remaining components and structures of our system maintain similarities to single-stage compressors, ensuring straightforward maintenance and a user-friendly service experience.
12) Door Panels are Removable:Constructed with noise-dampening metal plates and lined with high-density sound-absorbing material, the unit adheres to international noise standards. The door panel can be effortlessly opened and removed, providing 270-degree comprehensive access that greatly facilitates maintenance personnel's entry and dramatically enhances service efficiency.
1. Unbeatable Pricing Edge: Exceptional Value
Revolutionize your market presence with our remarkably competitive ex-factory pricing. This unique advantage enables our clients to surpass their competitors effortlessly, establishing a formidable industry standing and making an indelible impact.
2. Seamless Direct Transactions: Efficiency at Its Best
Experience unmatched efficiency with our direct transactions. Our products are dispatched directly from our state-of-the-art manufacturing facility, offering cost-effective solutions engineered with precision to meet your specifications and ensure your utmost satisfaction at every stage.
3. Extensive OEM & ODM Solutions: Tailored for Excellence
Capitalize on our extensive production capabilities and expert management to provide superior OEM/ODM services. These solutions are designed to integrate seamlessly with your specific needs and strategic objectives, ensuring your vision is executed with excellence.
4. Tailored Customization Service: Unique to Your Needs
Specializing in non-standard export orders, we provide bespoke customization for parameters such as voltage, power, and pressure. Reach out to discover personalized solutions crafted with precision to meet your specific requirements.
5. Acceptance of Small Orders: Discover Our Quality
Start with a small trial order and experience the exceptional quality and consistent performance our products deliver. Your satisfaction is our ultimate commitment, and we strive to exceed your expectations every time.
6. Swift Delivery: Keep Operations Uninterrupted
Enjoy our rapid delivery services, crafted meticulously to maintain your operations' seamless flow. With our premium products, your schedules take priority and are always adhered to with precision.
7. Complete Authorization: Empower Your Enterprise
Empower your enterprise with our comprehensive authorization certificates. Our distinguished distributors are fully equipped and empowered to market the esteemed SANZHI brand products with unwavering confidence and pride.
Successful Cases
Sanzhi (Henan) Compressor Co., Ltd shines brightly in the universe of air compression technology, proudly showcasing over ten years of unrivaled expertise. As pioneers leading the charge, we offer a vast and innovative selection of products, including advanced screw air compressors and trailblazing screw vacuum pumps. Our expansive range features not just standard models but also visionary low-pressure screw air compressors, cutting-edge permanent magnet frequency conversion systems, and robust two-stage compression systems that set new industry standards. Our screw air compressors are benchmarks of excellence, skillfully designed for laser cutting, versatile single and double-tank mobile use, and adaptable electric and diesel mobile applications. Our revolutionary screw vacuum pumps are engineered with meticulous precision and unwavering reliability, further solidifying our role as industry leaders.
Our manufacturing excellence is amplified by ultra-modern assembly lines, delivering unparalleled efficiency and efficacy. With a committed team of over 50 skilled experts, we continually refine our management systems, such as ERP, significantly shortening lead times and ensuring the rapid delivery of our premium products.
Our steadfast commitment to exceptional management is reaffirmed by our esteemed ISO9001 quality management system certification. By adhering to rigorous quality standards and implementing exacting control measures, each machine undergoes thorough inspections, including material evaluations, production assessments, and exhaustive pre-delivery checks. This guarantees that only machines of the highest caliber reach our valued customers.
Our promise of outstanding customer service begins with expert pre-sales consultations, assisting clients in choosing the perfect air equipment tailored to their specific needs. Our unparalleled customization capabilities enable us to adjust both appearance and configuration to individual preferences, and we provide OEM services to meet specific dealer needs. Our dedicated sales and service team ensures swift and effective responses, facilitating seamless and efficient post-sales support.
At Sanzhi (Henan) Compressor Co., Ltd, our unwavering mission is to deliver superior, reliable products while fostering lasting customer relationships. By combining quick delivery with exemplary product quality and competitive pricing, we establish ourselves as your trusted partner for comprehensive compressed air solutions.
Located in Xinzheng City, Henan Province, China, our facility provides unmatched accessibility for our clients. We offer complimentary transportation from Xinzheng International Airport, conveniently located just 30 kilometers away, a mere hour's drive. We warmly invite you to visit our esteemed facility.
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a seasoned manufacturer specializing in screw air compressors, with a wealth of over a decade of industry expertise.
Q2. How do you control quality?
A: 1. We conduct meticulous inspections of all raw materials to ensure they meet our exceptional quality standards.
2. Our assembly processes are executed with precision to maintain unparalleled excellence.
3. Each machine undergoes a minimum of five continuous hours of rigorous testing before dispatch, ensuring peak performance and reliability.
Q3. What information must I provide to get the suitable machine?
1. Required air delivery capacity (expressed in CFM or m³/Min).
2. Desired working pressure (expressed in PSI, Bar, or Mpa).
3. Voltage and frequency specifications for your country (expressed in V/Hz).
4. Additional accessories needed (e.g., air tanks, filters, air dryers).
Provide these details, and we will craft a bespoke solution precisely tailored to your requirements!
Q4. What is the general unit conversion?
1Bar = 0.1Mpa = 14.5PSI
1m³/min = 35.32cfm
1KW = 1.34HP
Q5. What is the available voltage air compressor?
A: At Sanzhi (Henan) Compressor Co., Ltd., we take immense pride in presenting a world-class spectrum of voltage options, each one meticulously customized to fulfill the distinct requirements of diverse global regions. Choose from our adaptable configurations: 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, and 440v/60hz/3p. Our steadfast commitment to delivering tailored solutions through our exclusive customization services ensures seamless integration with your operational demands. This unwavering dedication leads to unmatched adaptability and efficiency, empowering your enterprise with superior performance and reliability.
Q6. How long is the delivery time?
A: With standard voltage specifications, we distinguish ourselves with our swift order processing, achieving completion within a remarkable 15 working days following order confirmation. For custom orders, our proactive sales team will collaborate closely with you to tailor a timeline that aligns perfectly with your needs, ensuring a seamless and timely delivery process. Our meticulous attention to detail ensures your utmost satisfaction.
Q7. What's the payment term?
A: Our payment terms are thoughtfully designed to provide ease and simplicity. We initiate production with a 30% T/T initial payment, progress with a 40% T/T before shipment, and conclude with the final 30% T/T upon receipt of the B/L copy. We facilitate transactions in both USD and RMB currencies, offering flexibility and convenience for our esteemed clients.
Q8. How about your warranty?
A: We offer a comprehensive one-year warranty on the complete machine, complemented by an additional two-year warranty for the screw air compressor, excluding consumable parts. This extensive coverage provides unparalleled protection and peace of mind, safeguarding your investment with top-tier assurance.
Q9. What about the maintenance?
A: To ensure peak performance and longevity, we recommend initiating maintenance after the initial 500 hours of use. Following this, regular servicing every 2000-3000 hours is advised, customized to your specific operating conditions. This routine maintenance is essential for sustaining optimal durability and reliability.
Q10. Can machines be run in high-temperature environment?
A: Absolutely, our robust machines are expertly crafted to perform excellently in high-temperature environments. They operate smoothly within a temperature range of -20°C to 45°C (-4°F to 113°F), ensuring consistent functionality even under the most challenging conditions. Your operations will remain resilient and efficient.
Q11. Do you offer OEM service?
A: Yes, we proudly offer both OEM and ODM services, supported by our talented design team. We enthusiastically welcome custom orders and are committed to bringing your unique ideas to life with precision and excellence. Partner with us for unrivaled customization.
Q12. How long could your air compressor be used?
A: Our air compressors are meticulously engineered for longevity, typically offering an extraordinary lifespan exceeding 10 years. This ensures reliable and enduring performance, consistently supporting your operations over the years. Invest in our compressors for long-term dependability.
Q13. Will you provide some spare parts for the machines?
A: Certainly, we are dedicated to providing ongoing support by supplying essential spare parts for your machines. This ensures seamless operations and minimizes downtime, enabling you to maintain optimal performance continuously.
Q14. How about your after-sales service?
A: We are wholeheartedly committed to delivering outstanding after-sales service. Our comprehensive offerings include detailed online guides for installation and commissioning, along with access to our expert engineers for training and installation assistance. Your satisfaction and success are our top priorities, ensuring you receive unparalleled support.
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